Reporting myself as invisible to other people while running 0.97c on my character Gearmeister. Leandro took some form of a record of my costume with a debug build afaik, but I figure I might as well log it here. It persisted through xmppdisconnects and full relogs, and seems to be occurring with my alternate costumes on that character too. I ran into a Diana DeSoto with the same problem as well.
Updating to note that my other character, Mindgame, is also staunchly invisible to everyone but me. I've made both of these characters on a 0.97a or later build, just to throw it out there.